They experimented with a new type of engines.
他们用一种新型的发动机进行试验。
This was done by increasing the power of engines and making the aircraft fuselage more streamlined.
这是通过增大引擎的动力以及把机身制作成流线型来实现的。
Rolls-Royce Group Plc climbed 1.3 percent to 645.5 pence after Citigroup Inc. raised its recommendation for the world’s second-largest maker of engines to “buy” from “hold.”
全球第二大引擎生产商劳斯莱斯集团股价上涨1.3%，至645.5便士，花旗集团把劳斯莱斯股票评级从持有上调为买入。
And hence the mean lifetimes of the two brands of engines are equal.
也就是说，两种牌号引擎的平均寿命是相等的。
I put my knowledge of engines to good account when the car broke down.
汽车抛锚后，我的发动机知识管了用。
There are two kinds of engines in use: gasoline engines and diesel engines.
目前汽车用发动机主要有汽油机和柴油机两种。
The resolution of these issues on the development of engines has a very important role.
这些问题的解决对发动机的研制有着十分重要的作用。
The invention of engines has brought human history into a brand new, rapid developing time.
毫不夸张地说，发动机的发明将人类历史带入了一个崭新的，飞速发展的时代。
The influence of unbalanced crankshafts on vibration and wear of engines is studied through tests.
通过试验，从振动和磨损的角度，研究了曲轴不平衡对发动机的影响。
PZ12D and PZ10J carburettors are equipped on two types of engines with chain transmission for mopeds.
PZ 12 D型化油器和PZ 10 J型化油器，分别与两种中轴链传动的发动机配套，用于助力车上。
Both kinds of engines are internal-combustion engines, But each of them has its characteristic features.
这两种发动机都是内燃机，但各自却具有自身的特点。
The results show that the volumetric efficiency of engines can be improved by the resonant intake system.
结果表明：采用谐振型进气管能明显地改善发动机的充气特性。
There are various types of engines such as electric motors, steam engines and internal combustion engines.
有各种各样的发动机，如电动机、蒸汽机和内燃机。
The utility model relates to a water tank filter, belonging to a filtering device of the cooling circulating water of engines.
一种水箱过滤器，属于发动机冷却循环水的过滤装置。
The results show that this method can be used to analyse qualitatively the effects of fuel additives on combustion processes of engines.
结果表明：利用放热规律计算结果可以定性分析燃油添加剂对发动机燃烧过程的影响。
As the morning of April 10, 1945, dawned, the German troops-tired, hungry and unable to sleep-were stirred by the distant sound of engines.
在1945年4月10日拂晓，又饿又累、几天未眠的德军官兵们听到了远方传来的发动机声。
In this paper a simulating experimental device for journal bearings of engines was established by use of the mechanism of ultrasonic vibrating.
采用超声振动原理建立了一台汽车发动机滑动轴承模拟气蚀实验装置。
"This shows that there is no observable difference in performance of engines using biodiesel versus the more common commercial fuel," Lumkes said.
“该研究表明，使用生物柴油和使用普通商业燃料的发动机不存在明显的性能差异，”卢姆·克斯说。
Compressor is one of the most important parts in the aeroengine, because the designing work is critical for the performance of engines to a degree.
压气机是航空发动机最为关键的部件之一，其设计好坏在很大程度上决定了整台发动机的性能。
A measuring system is studied to test coupled pair in oil nozzle of engines by means of the pneumatic sensing method and the diffused silicon pressure sensor.
研究了利用压力位移气动传感方法和以扩散硅压力传感器组成测试系统对发动机喷油嘴偶件进行检测。
It can be used in development of electronically controlled fuel system of engines, including its hardware and software and optimization of engine performance.
该系统可适用于发动机电控燃油系统的硬件研制、软件开发以及发动机性能优化等各个阶段。
In this paper the performance of turbocharged diesel engine running on highland is discussed and the general methods are proposed to recovery power of engines.
简要论述了增压柴油机在高原地区运行的特点，提出了发动机高原恢复功率的一般性措施。
Based on the technical parameters for the performance of engines, the economical index of engines is predicted and analyzed by the theory of fuzzy linear regression.
由发动机性能的设计技术参数，运用模糊线性回归理论建立了发动机经济性指标的模糊预测模型，并对其经济性指标进行预测和分析。
Although third generation gasoline detergent additives keep nozzles and intake valves of engines clean, they simultaneously increase combustion chamber deposits (CCD).
第三代汽油清净剂在保持发动机喷嘴、进气阀清洁的同时，增加了燃烧室沉积物(CCD)，这将增加部分污染物的排放。
The possibility of forming connection rods of engines by "warm pressing and liqUid phase sintering on boundary of particles " is explored in theory and experimentally.
通过理论和实践分析，探讨了采用“温压技术和颗粒界面液相烧结技术”生产发动机连杆（典型零件）的可能性。
Therefore, our valve spilt collar can meet the requirements of engines not only in use performance, but also in smooth and bright appearance, as perfect as the imports.
因此，我公司生产的气门锁夹不仅使用性能满足了主机的各项要求，而且产品外观白亮细腻光洁，足以和进口件媲美。
For over a century, scientists and speed enthusiasts have experimented with different types of engines, fuels, and vehicle designs in their quest to go faster than ever before.
一百多年来，科学家和狂热追求速度的人已经尝试了不同类型的发动机，燃料和车辆的设计以追求比以前更快的速度。
For over a century, scientists and speed enthusiasts have experimented with different types of engines, fuels, and vehicle designs in their quest to go faster than ever before.
一百多年来，科学家和狂热追求速度的人已经尝试了不同类型的发动机，燃料和车辆的设计以追求比以前更快的速度。
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